Heating system.



G. Q. RILEY;

HEATING SYSTEM.

APPLICATION FILEDMAH.25,1915.

Pfvente 0015.80, EN?,

TTOR/VEYS l To. all whom t mcyconcern:

citizen ofthe United States,- and a resident i through onejof theheaters.

UniTED srii'rns PATENT carica.'

` GEORGEQ. RILEY, or cenone,- cemrcanra.

:enfantine sYs'rni/i.

Be it known that I, GEORGE Q. Einar, a

of Corona, in thecounty of Riversidel and State of California, haveinvented a new and useful Improvement in Heating Systems, of tion. j

My invention is an improvement in.

heating systems Jfor orchards and the like, for preventing injury to thetrees from i frost andthe like, whereinfthe system is a ermanentarrangement having means ad'- iacent to each tree for raising thctemperature' ofthe air about lthe tree'above the point where the treewould be injured, the heat being provided by an electric current, thuspermitting the system to be controlled at a distance.

In the drawings 2'* Figure 1 isa diagrammatic -View of a portion of theheating system, and

Fig. 2 is a longitudinal vertical section The present embodiment oftheinvention is. shown in connection with trees 1 and a heating medium to'be later described, is'

rovided foreach tree. A pair of conduct` ing wires 2 and 3 is strungthrough theorparallel lines, the leadwires 2 and 3 beings supported inany suitable manner, as for in- 5 to which the conducting wires arecon-Chard at desired intervals and-preferably in stance by the poles @havingthe cross arms nected, the wires being insulated from the It 'will beunderstood that as many-pairs of wires 2 and 3 are used as may bedesired,

said-wires 6 and 7 areeonnected with the heater.

Adjacent to each tree an excavation 8 is made in the ground,theexcavation being oit suitable'. size, "and each excavation is linedwith-water tight lining'.v ln the present instance -an open pan orVessel 9 is seatedfin the excavation, each pan or vessel having a whichthefollowing is a speciica-y Specification of Letters Patent. v gttentedOct,- 30, 1917, Application ined March 25,1915. v seriai No. 16,872. 4 i

pan, each heater consisting of a coil- 12 oit' resistancewire, mountedon a suitable support 13. heater are connectedwith the terminals of thecoil 12, and a suitable switch may be pro The branch .wires Gand 7 ateach videdat a central point, for admitting 'the' electric l'current tothe lead wires 2 vand 3.-

'lfhe heaters12 are arranged in parallel as shown, .so that should forany reason one of -the heaters be put out of commission it will Anotatleet theother heaters.

In operation when the temperature falls below a certain predeterminedoiiit the switch isturned to admit the electric current to the leadwires 2 and 3. The current passing through the resistance wire 12 of theheaters will heat the said wire,thus heatheated water will heat the airdirectly above raising the temperature of lthe air to a de-` grec suchthat trees will notbe injured. The

v.ing the waterv 11 in the pan 9, and this current passing through theheater and the heaters themselves is such as to provide the i properamount of heat, and by theuse of rheostats of. well known construction,a

y 'greater or less` degree et electric current may accordance be passedthrough the heaters in withthe temperature.

As is known, tog' or mist passing through the foliage or tree acts toprotect tn'e "saine from theaction of low'temperature, 'and it will beobvious that the mist formed 'by the heating or the water will partiallycondense almost at once because of the low temperature, thus providing'not only heated air but a inist or fog -for cooperating with the heatedair. v

l clainite- Means for protecting orchards, the same consistingof aplurality of open top water M. KET'.

